We already have such limitation in place, but can't recall the limit.
All members who join ICF are part of L1 group, once they cross a posts limit, they are automatically moved to L2 group. Creating thread is not allowed in L1 group.
Threads on similar subjects has been an issue. This is one area where moderation doesn't help. Members should search for similar threads before starting a post. Others members should encourage them to use search feature and if you see similar threads, report it to be merged.
50 words per post - this isomething we can discuss.

No members will have to help us now.
We have half a dozen active mods who were doing everything.
Now we are relying on all members and this is a request to all great members of ICF. Help us in improving the forum.
Contribute towards the forum. Whenever you see something which can be changed or corrected report it or post in the thread.

5 years back no one would have imagined that SRT can be compared any other batsman in ODIs so soon. For years this discussion has been avoided saying that Kohli has long way to go.
But now Kohli is already halfway through in terms of number of runs and smashing all records left and right. He has got 32 centuries and it seems that he will easily surpass SRT's ODI 100s record.
SRT
Matches: 463
Runs: 18426
Avg: 44.83
SR: 86.23
100s: 49
50s: 96
HS: 200 v SA
Kohli
Matches: 202
Runs: 9030
Avg: 55.74
Avg: 91.73
100s: 32
50s: 45
HS: 183 v Pak
First let's see their overall ICC ODI ratings
Recently Kohli achieved highest ever ODI batsman ranking for Indian batsman surpassing SRT's 887. Right now Kohli is ranked 1 batsman with 889 points.
So let's start with simple question - who's better batsman in ODIs - SRT or Kohli?

Khawaja faced visa issues earlier.
https://www.smh.com.au/sport/cricket/pakistanborn-khawaja-refused-indian-visa-for-t20-tournament-20110809-1ikz4.html
And other recent news
https://www.theguardian.com/australia-news/2018/dec/04/cricketer-usman-khawaja-brother-arsalan-arrested-terrorism-hitlist
How did being cricketer helped his brother? What did ACB do in this case?
Being cricketer means nothing when it comes to scrutiny for nationality and origin.

What's the basis of saying that they aren't professional and not applying common sense?
You're expecting that since they play domestic cricket in England they would have already been vetted by cricket board at all levels.
Cricket boards restrict their checks to eligibility only. So this isn't unprofessional, unless there is some special clearance and actual goof up.
Till now it seems standard process.

And in that case you're suppose to report the post. Please go through rules of site, if you haven't already. I would suggest avoiding posting on forum before reading and understanding those since you're a new member.

Hashim Amla Breaks Virat Kohli's Record With 27th ODI Hundred
Yet another example showing how much centuries and centuries per inning are inflated this decade and doesn't necessarily mean equivalent inflation in quality.

So, the question is batsman who is so much ahead while chasing, should be at similar level batting first. Why is there a difference?
When you have such discrepancy in stats, it shows that either one type of condition is tougher (like 4th inning in tests) or other type has been very easy (like Mahela's stats in Colombo).

Difference of 800 runs and avg difference of 10.
But if Kohli is better and batting has improved then why this isn't reflected in batting first. Any reasons? After all scoring is getting higher only since 2012.

Slightly ahead. That's far ahead and it shows that batting hasn't been massive upgrade from previous generation as some posters claim here. Otherwise it was the case you would have seen at least comparable number, not such huge difference.
Inflated number during chases and way lower during batting first clearly shows that while mental toughness has played a big part, batsmen know that they won't be facing slower pitches and old ball to put a brake in their innings in later stages and can play normally. When this luxury goes missing batting first and they are forced to take risk, it mental toughness, better ability of hitting has taken backseat.
Consider SA v Pak match yesterday. What was one poor innings from Amla would have been good knock in chase if SA were chasing similar total and they had won it even in 50th over.